**Introduction** Langflow is a Python-based visual editor for building AI and agentic applications. Our open-source platform makes it easy for developers to compose, orchestrate, and debug complex LLM-powered systems. We’re looking for an engineer who’s excited to design and scale the APIs that power Langflow — and extend its reach through integrations, plugins, and external tooling. **Your role and responsibilities** What you'll do: * Design, implement, and evolve the Langflow API to support creation, execution, and introspection of AI workflows. * Build the foundations for third-party integrations, including plugin APIs, webhooks, and external tool interfaces. * Collaborate with frontend and platform engineers to ensure clean, well-documented interfaces across the product. * Own the developer experience for Langflow’s API consumers — internal and external — with a focus on consistency, discoverability, and security. * Contribute to our open-source SDKs, CLI tools, and infrastructure to make it easy to embed Langflow in other systems. **Required technical and professional expertise** * 7-9 years of relevant experience * Strong backend development skills with Python, including experience designing clean, well-structured RESTful APIs. * Familiarity with FastAPI (or similar Python frameworks), OpenAPI, and API versioning strategies. * Experience building integrations or extension systems (e.g. plugin architectures, webhooks, OAuth flows, etc.). * Understanding of async programming, task queues, and long-running background jobs. * Thoughtful approach to API design: you consider developer ergonomics, edge cases, and backward compatibility. * Comfortable writing tests, profiling performance, and working with observability tooling. **Preferred technical and professional experience** * Bonus: experience working on dev platforms, low-code systems, or orchestration frameworks. IBM is committed to creating a diverse environment and is proud to be an equal-opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, gender, gender identity or expression, sexual orientation, national origin, caste, genetics, pregnancy, disability, neurodivergence, age, veteran status, or other characteristics. IBM is also committed to compliance with all fair employment practices regarding citizenship and immigration status.